US 11,731,164 B2
Pulse train excitation for capacitive micromachined ultrasonic transducer
Bo Ma, Palo Alto, CA (US); Kamyar Firouzi, Palo Alto, CA (US); Butrus T. Khuri-Yakub, Palo Alto, CA (US); and Jose Joseph, Stanford, CA (US)
Assigned to The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed by The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Filed on Sep. 28, 2021, as Appl. No. 17/449,235.
Application 17/449,235 is a continuation of application No. 17/152,563, filed on Jan. 19, 2021, granted, now 11,173,520.
Claims priority of provisional application 62/963,386, filed on Jan. 20, 2020.
Claims priority of provisional application 62/963,393, filed on Jan. 20, 2020.
Prior Publication US 2022/0152651 A1, May 19, 2022
Int. Cl. B06B 1/02 (2006.01); B06B 1/06 (2006.01); B81B 3/00 (2006.01); B81C 1/00 (2006.01); G01N 29/06 (2006.01); G01N 29/24 (2006.01); G01N 29/22 (2006.01)
CPC B06B 1/0215 (2013.01) [B06B 1/0292 (2013.01); B06B 1/0651 (2013.01); B06B 1/0662 (2013.01); B81B 3/0021 (2013.01); B81C 1/00166 (2013.01); G01N 29/0654 (2013.01); G01N 29/2406 (2013.01); B06B 2201/55 (2013.01); B81B 2201/0271 (2013.01); B81B 2203/04 (2013.01); B81C 2201/0157 (2013.01); B81C 2201/0178 (2013.01); G01N 29/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of exciting a capacitive micromachined ultrasonic transducer, the method comprising:
applying a sequence of half-wave pulses to the capacitive micromachined ultrasonic transducer to excite a continuous wave mode, wherein the capacitive micromachined ultrasonic transducer outputs a continuous wave of ultrasound energy in the continuous wave mode.